Cutter for corn-harvesters.



No. 705323. Patented July 29, I902.

A. N. HADLEY.

CUTTER FOR CORN HABVESTERS.

(Application Med Feb. 5, 1901.)

(No Modal.)

WEE/Z UNITED STATES PATENT ()FFICE.

ARTEMUS N. HADLEY, OF INDIANAPOLIS, INDIANA.

CUTTER FOR CORN-HARVESTERS.

SPECIFICATION forming part of Letters PatentNo. 705,923, dated July 29,1902. Application filed February 5, 1901. Serial No. 46,057. (No model.)

To all whom it may concern.-

Be it known that I, ARTEMUS N. HADLEY, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented a new and useful Cutter for Corn-Harvesters, of which thefollowing is a specification.

My invention relates to an improvement in cutters for corn-harvesters.

The object of my invention is to provide various changes in thearrangement and form of the cutters shown in Patent No. 432,750, issuedto me July 23, 1900.

The accompanying drawings illustrate my invention.

Figure 1 is a view in perspective of a pair of cooperating cutters andthe adjacent parts. Fig. 2 is a detail showing on a larger scale thepeculiar formation of the cutting edges. Fig. 3 is a vertical section ona plane between the two cutter-shafts.

In the drawings, 3 indicates a drive-shaft the outer end of which issupported in a pair of bearings 4 and 5. Bearing 4 is provided with anupwardly-extending stud 6, and bearing 5 is provided with a similar stud7.

Rotatably mounted upon stud 6 is a cutterhead 8, to which are securedthe several se ments ofacutter 9, and mounted in a similar manner uponstud 7 is a cutter-head 10, upon which are secured the segments of acutter 11. The cutters 9 and 11 are of the same general form as thoseshown in my above-mentioned patent,each consisting of several circularsegments of radial arms 12 projecting therefrom, the periphery of thesegments and the sides and ends of the arms 12 being beveled and broughttoacutting edge. In myprevious patent the cutters were arranged oneabove the other and slightly overlapped, the two revolving in parallelplanes. In such an arrangement there is a tendency to spread the twocutters apart, and in order to prevent this spreading of the cutters Imount them so as to revolve in planes which converge toward the front ofthe machine, so that while the cutting edges of the two cutters will lieoperating cutter.

close together at their point of meeting toward the front of the machinethey will be slightly separated at the rear. This position of the twocutters may be obtained in several ways-as, for instance, by tiltingstud 6 slightly to the rear and tilting stud 7 slightly to the front. Ifdesired, the difference in the angle of the two cutters may be producedby care in babbitting the two bearings. With the cutters arranged inconvergent planes there is some danger that the radial arms may becomeinterlocked as they are brought toward each other. In order to preventthis, the outer cutting corner of each arm 12 is turned up slightly, asshown at 18, so that the points of the arms of one cutter may not passbeneath the points of the arms of the co- If desired, the other cuttingedges of the radial arms may be ground otf slightly, so that the outercutting corners may lie slightly above the plane of the other cuttingedges.

For the purpose of driving the cutters any desired form of gearing, suchas the gears 14 and 15, secured to the shaft, and the gears 16 and 17,secured to the cutter-heads 8 and 10, respectively, may be used.

I claim as my invention 1. As an article of manufacture, a disk cutterhaving a series of arms projecting from the periphery thereof, cuttingedges formed upon the periphery of said disk,and the outer, forward,lower corner of each arm raised slightly above the plane of the cuttingedge, substantially as described.

2. As an article of manufacture, a disk cutter having a series of armsprojecting from the periphery thereof, cutting edges formed upon theperiphery of said disk and upon the sides of said arms, and the lowercorners of each arm raised slightly above the plane of the cuttingedges, substantially as described.

ARTEMUS N. HADLEY.

Witnesses:

A. G. GRIFFIN, W. B. HUBBARD.

